I see that the dignity of human life means very little to you. Such a shocking statement that I am speechless at its cruelity.
She went for her interview with four years of teaching college and two years at elementary school - they grabbed her quickly. Finally she got the job she had dreamed about. Special Education. The classes were Senior, Junior and Primary. Ages were from two or three years old up to thirteen years. She is very charitable to those who have never really had the experiences of these children. I had diplomatically mentioned that there were some "misunderstandings" here.
Some things she did for the apparently severely disabled were dabbled their fingers in jello and other tactile things. Putting their feet in a puddle and see them chuckle and laugh. I would gather from what she has said it is the stimulation of the senses that gives them some measure of well being. Somebody cares and they know this.
On the more able cases, they were tutored at every possible academic level. Some went on to earn a living and compete in this life's journey. Things have changed though and now the mentally challenged, who are considered more able, are integrated into regular classes. Mixed feelings about this, the kids can sometimes be unkind. Certainly not always though.